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Finding the Fourth Proportional to 71,145.94, 98,197.77 and 40,948.70

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Solution

The fourth proportional to 71,145.94, 98,197.77 and 40,948.70 is: 56,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,145.94 : 98,197.77 = 40,948.70 : x
  2. Step 2: Convert to fraction form
    71,145.94/98,197.77 = 40,948.70/x
  3. Step 3: Cross multiply
    71,145.94x = 98,197.77 × 40,948.70
  4. Step 4: Simplify right side
    71,145.94x = 4,021,071,024.40
  5. Step 5: Solve for x
    x = 4,021,071,024.40/71,145.94
  6. Step 6: Final answer
    x = 56,518.63

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